FK Irons

LightningBolt Battery Packs

Rated 3.8 stars
Style: LightningBolt
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Product Description

The FK Irons LightningBolt is a lightweight battery pack that lets you work for up to 6-10 hours on a single charge. The LightningBolt features built-in LED voltage indicators, and its Bluetooth capability means you can easily pair it with Darklab’s wireless products and mobile app.

Key Features:

Running Time: 6-10 hours Charge time: 1.5 hours Weight: 2 oz Voltage Range: 5-12 volts Voltage Display: LED Indicator Connection Type: RCA*

Bonus Features:

  • USB-C Li-Ion battery
  • Bluetooth capability
  • Wireless firmware updates capability
  • Automatic Jumpstart

Recommended use with/compatible with: Xion, Xion S and Xion G & all FK Irons Spektra machines. Any other branded machines not guaranteed compatibility.


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About FK Irons

FK Irons (Fallen King Irons) started with a couple of unknown tattoo artists building machines for friends in 2002. The start was very humble and straightforward. With little budget, stuck in a garage for hours, Gaston Siciliano (CEO) crafted his first creations.

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Rated 3.8 stars
Based on 4 reviews
Total 5 star reviews: 2 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
4 reviews
  • D
    1 year ago
    Rated 1 stars
    I'm one of those unlucky FK

    I'm one of those unlucky FK product situations. Bought it through another supplier, followed charging instructions, looked good, turned it off and placed it in drawer for later use. A week later the battery was dead. So I re-charged it, same thing, and then a third time same thing. Contacted FK, went through a hard resetting process, no luck. Sent it in to FK headquarters, got it back (on their dime luckily) with a completely changed battery. Guess what...same issue, battery doesn't hold a charge. I'll be contacting FK again but at this point months into not being able to use this very expensive product I'd warn other buyers to avoid this same possible lemon situation. (Still LOVE my Xion, but sticking to the cord for now I guess). *This review is based on the FK product and does not reflect the amazing service I receive from Eikon :)

  • C
    Verified Buyer
    2 years ago
    Rated 4 stars
    This product is great i

    This product is great i bought it for my axys Valhalla and it fits like a glove. The charging is insanely fast. But at. 4.2mm stroke with the Valhalla lining anything for me i would run my critical atom x at about 11.2 to maybe 12 volts which i find is normal voltage with a fast hand speed ..from my experience with the lightning bolt it only lasts about 3 hours running at 11.5 to 12. Mind you i was able to tattoo a lot faster not having a cord attached to me getting tangled around my chair.. but if you run your pen machines in the 11 to 12 volt range i would strongly suggest grabbing 2 of these especially for 6 hours long sessions. I ran a voltage output test on the lightning bolt and to my critical atom x . The voltages are accurate When above the 15 to 39% charge i was receiving less power when below. It’s a great little power supply for what it is although definitely could be improved on down the road cant wait to see what the Gen 2 can do !

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